Merbag
merbag.ch
- Industry
- Automotive retail
- Headquarters
- Schlieren, Zurich
- Type
- private
- Employees (approx.)
- 1,200
- Checked on
- 19 October 2026
70/100Grade B
Protection against forged senders: protected
Points per criterion
- MX 10 / 10
- SPF 15 / 15
- DKIM 20 / 20
- DMARC 25 / 25
- DNSSEC 0 / 10
- Transport (MTA-STS/DANE) 0 / 15
- TLS-RPT 0 / 5
- Industry avg.: 50.2 ▲ 19.8
- Canton avg.: 53 ▲ 17
- Overall avg.: 53.5 ▲ 16.5
- Rank 3 of 9 in the industry
Findings
-
!DNSSEC not enabled
Without DNSSEC, DNS answers can be forged in transit. DANE requires DNSSEC.
-
!No MTA-STS
Without MTA-STS (or DANE) inbound encryption is not enforced; an attacker on the path can downgrade to plain text.
-
!No TLS reporting (TLS-RPT)
Without TLS-RPT the organisation does not learn when senders fail to deliver encrypted.
Who runs the mail?
- Mailbox provider
- Swisscom
- Upstream gateway
- Swisscom Mail Security
- Provider jurisdiction
- Switzerland · MX: CH
- Detection confidence
- 92 / 100
- Microsoft tenant
- Managed · Mercedes-Benz Automobil AG
- Tenant region
- EU
Signals (5)
| Domain verification | Microsoft 365 | MS=ms99117881 |
|---|---|---|
| MX | Swisscom | mx01.mailsecurity.swisscom.com |
| SPF | Swisscom | include:mailsecurity.swisscom.com |
| Network | Swisscom | AS3303 SWISSCOM - Swisscom (Schweiz) AG |
| Entra ID | Microsoft 365 | Entra-ID-Tenant (Managed) |
MX servers
| Pref | Host | IP | Network | Country | TLSA |
|---|---|---|---|---|---|
| 10 | mx01.mailsecurity.swisscom.com | 193.135.100.9 | AS3303 SWISSCOM - Swisscom (Schweiz) AG | CH | – |
| 20 | mx02.mailsecurity.swisscom.com | 193.135.100.29 | AS3303 SWISSCOM - Swisscom (Schweiz) AG | CH | – |
SPF
v=spf1 mx include:_spf01.eyevip.ch include:mailsecurity.swisscom.com ip4:212.243.154.164 -all- all
-all- DNS lookups
- 4 / 10
- Includes
_spf01.eyevip.chmailsecurity.swisscom.com- Detected sending services
- Swisscom
- IPv4
- 1 addresses authorised directly
DMARC
v=DMARC1;p=reject;rua=mailto:dmarcreports@merbag.ch;ruf=mailto:dmarcreports@merbag.ch- Policy
- p=reject
- Subdomains (sp)
- inherits p=reject
- Share (pct)
- 100 %
- Alignment DKIM/SPF
- relaxed / relaxed
- Aggregate reports (rua)
dmarcreports@merbag.ch- Forensic reports (ruf)
dmarcreports@merbag.ch
DKIM
| Selector | Key | delegated to |
|---|---|---|
k2 | RSA 2048 | dkim2.mcsv.net |
k3 | RSA 2048 | dkim3.mcsv.net |
Checked: 100 common selectors. Keys under custom selectors remain invisible.
Transport encryption
- MTA-STS
- missing
- DANE
- missing
- DNSSEC
- missing
- TLS-RPT
- missing
- BIMI
- missing
Verified services
From verification records in the domain TXT: services where the domain is verified.
Microsoft 365AppleDocuSign
History
- Score 70 · DMARC reject
Raw data
merbag.ch. IN MX 10 mx01.mailsecurity.swisscom.com.
merbag.ch. IN MX 20 mx02.mailsecurity.swisscom.com.
merbag.ch. IN TXT "v=spf1 mx include:_spf01.eyevip.ch include:mailsecurity.swisscom.com ip4:212.243.154.164 -all"
_dmarc.merbag.ch. IN TXT "v=DMARC1;p=reject;rua=mailto:dmarcreports@merbag.ch;ruf=mailto:dmarcreports@merbag.ch"